<!--
    THIS EXAMPLE WAS DOWNLOADED FROM https://echarts.apache.org/examples/zh/editor.html?c=bar-simple
-->
<!DOCTYPE html>
<html style="height: 100%">
    <head>
        <meta charset="utf-8">
    </head>
    <body style="height: 100%; margin: 0">
        <div id="container" style="height: 100%"></div>

        <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts@5/dist/echarts.min.js"></script>
        <!-- Uncomment this line if you want to dataTool extension
        <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts@5/dist/extension/dataTool.min.js"></script>
        -->
        <!-- Uncomment this line if you want to use gl extension
        <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts-gl@2/dist/echarts-gl.min.js"></script>
        -->
        <!-- Uncomment this line if you want to echarts-stat extension
        <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts-stat@latest/dist/ecStat.min.js"></script>
        -->
        <!-- Uncomment this line if you want to use map
        <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts@5/map/js/china.js"></script>
        <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts@5/map/js/world.js"></script>
        -->
        <!-- Uncomment these two lines if you want to use bmap extension
        <script type="text/javascript" src="https://api.map.baidu.com/api?v=2.0&ak=<Your Key Here>"></script>
        <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/echarts@5/dist/extension/bmap.min.js"></script>
        -->

        <script type="text/javascript">
            var base = +new Date(2014, 9, 3);
            var oneDay = 24 * 3600 * 1000;
            var date = [];

            var data = [Math.random() * 150];
            var now = new Date(base);

            function addData(shift) {
                now = [now.getFullYear(), now.getMonth() + 1, now.getDate()].join('/');
                date.push(now);
                let randomNum = Math.floor(Math.random() * (100 - 10)) + 10;
                data.push(randomNum);

                if (shift) {
                    date.shift();
                    data.shift();
                };

                now = new Date(+new Date(now) + oneDay);
            };

            for (var i = 1; i < 6; i++) {
                addData();
            };

            var dom = document.getElementById("container");
            var myChart = echarts.init(dom);
            var app = {};

            var option;



            option = {
                xAxis: {
                    type: 'category',
                    data: ['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun']
                },
                yAxis: {
                    type: 'value'
                },
                series: [{
                    data: [120, 200, 150, 80, 70, 110, 130],
                    type: 'bar',
                    itemStyle: {
                        borderRadius: [80, 80, 0, 0]
                    }
                    
                }],
                itemStyle: {
                    borderColor: '#31708f'
                },
                selected: {
                    itemStyle: {
                        borderColor: '#31708f'
                    }
                }
            };

            if (option && typeof option === 'object') {
                myChart.setOption(option);
            }

            setInterval(function () {
                addData(true);
                myChart.setOption({
                    xAxis: {
                        data: date
                    },
                    series: [{
                        data: data
                    }]
                });
            }, 2000);

        </script>
    </body>
</html>
    